Valve



0. w. SCHLA G.

VALVE.

APPLICATION FILED'DEC-E. I919.

' 1,366,028. Patented Jan. 18,1921.

WITNESS: I [WEN-TOR 4%? Jmm- Oscar Wsmm BY Q1896: ATTORNEY.

vl'Y-l'uNlTEv-e TE?Rem Q J I OSCAR W. SCHLAG, OF i JHICAGO, ILLINOIS.

vALvn.

Specification of Letters Patent.

Application filed December 6, 1919. Serial No. 342,950.

To aZZ whom it may canoe m:

Be it known that 1, Oscar W. SoHLAo, a citizen of the United States,residlng at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Valves, of which the followingis a specification.

This invention relates to improvements in a combined drain and trap forsewer pipes and the principal object of the invention is to provide agas trap to prevent the escape of gas from the sewer and also to preventforeign substances from passing into the sewer.

Another object of the invention is to provide a float valve forpreventing back pressure of the water within the sewer flowing outwardlythrough the drain with a removable cage for holding the ball in place.

The present invention is an improvement upon the device shown in PatentNo. 1,218,6t82, granted to me on March 6, 1917.

This invention also consists in certain other features of constructionand in the com-" bination and arrangement of the several parts, to behereinafter fully described, illus trated in the accompanying drawingsand specifically pointed out in the appended claims. I11 describing myinvention in detail, ref

erence will be had to the accompanying drawings wherein like charactersdenote like or corresponding parts throughout the several views, and inwhich Figure 1 is a longitudinally sectional view of the improveddevice. I

Fig. 2 is a side elevation with parts broken away.

Fig. 3 is a detail view.

In these views 1 indicates the bowl of the device which is provided witha tubular projection 2 in its center through which the waterupasses tothe sewer. The top of the bowl is closed by the usual perforated plate aand a bell lis connected with-said plate and incloses the upper end ofthe tubular projection 2. The edges of the bell project beyond the upperend of said projection so thatwhen the bowl is filled with watera trapwill be formed to prevent the escape of gases from the sewer.

of the sockets.

I also provide means for preventing the water from passing from thesewer back into the drain, as set forth in the above mentioned patent.Such means consist of a cage 5 connected with the bottom of the bowl andinclosing the ball valve and its seat 7. a

In the present case the cage is formed of a pair of U-shaped members 8having their ends provided with hooks 9 and these hooks engage sockets10 formed 011 the lower part of the bowl. Thus by rocking the U-shapedmembers the hooks may be withdrawn from the sockets so as to remove thecage from the bowl. The cross-pieces of the U-shaped members areprovided with interlocking notches 11 for holding the lower ends of themembers together.

The valve seat 7 is preferably formed of rubber and it is held in placeb'y having its flange 7 pressed under the projecting parts As will beseenthis valve seat is placed around the lower end of the tubularprojection.

It will thus be seenthat the gases within the sewer are prevented fromescaping by air trap formed by the bell and the tubular projection. Itwill also be seen that the escape of water from the sewer is preventedby the float valve and this valve and its seat may be easily removed bydetaching the cage.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

Idesire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claims.

What I claim is 1. A device of the class described comprising a bow].having a centrally arranged opening therein, a plurality of socketmembers formed on the bottom of the bowl around said opening, a cageformed of a pair of U-shaped members having hooked ends engaging thesocket members, a valve seat at the lower part of the opening and a ballvalve within the cage and adapted to engage the seat.

Patented Jan. 18, 1921.

2. A device of the class described comat the lower part of the opening,a ball valve prising a bowl having a centrally arranged Within the cageand adapted to engage the opening therein, a plurality of socketmemseat, said seat being formed of flexible ma- 10 bers formed on thebottom of the bowl terial and having parts projecting under the '5around said opening, a cage formed of a pair socket members.

of U-shaped members having hooked ends In testimony whereof I afiix mysignature. engaging the socket members, a valve seat OSCAR W. SCHLAG.

